Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
Etymology: More on authors: Müller & Henle.

Environment: milieu / climate zone / depth range / distribution range Écologie

marin récifal. Tropical; 23°S - 35°S, 12°E - 18°E (Ref. 114953)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Southeast Atlantic: South Africa to Namibia.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 100.0 cm TL mâle / non sexé; (Ref. 6497)

Description synthétique Clés d'identification | Morphologie | Morphométrie

A guitarfish with a broadly pointed snout and a broad pectoral disc (Ref. 5578). Plain brown above, young with white spots (Ref. 5578).

A rare and unknown species found inshore, in shallow bays and off sandy beaches (Ref. 5578). Ovoviviparous (Ref. 50449). Reaches 96 cm TL (Ref. 114953).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).

Référence principale Upload your references | Références | Coordinateur : McEachran, John | Collaborateurs

Stehmann, M., 1990. Rhinobatidae. p. 23-27. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 6497)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 25 April 2018

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

Plus d'informations

Trophic ecology
Éléments du régime alimentaire
Diet compositions
Food consumptions
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Prédateurs

Ecology
Écologie

Population dynamics
Growths
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Length-weight rel.
Length-length rel.
Fréquences de longueurs
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Life cycle
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Egg(s)
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Dynamique des populations larvaires

Distribution
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Anatomy
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Physiology
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Diseases / Parasites
Toxicities (LC50s)

Genetics
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Human related
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Estimates based on models

Preferred temperature (Ref. 123201): 16.2 - 27.9, mean 25.5 °C (based on 265 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00295 (0.00151 - 0.00578), b=3.13 (2.96 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.6 ±0.5 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): High vulnerability (60 of 100).

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